muephy



(No Model.)

H. FEYH & J. L. MURPHY.

WOOD PLANING MAGHINE.

No. 320,769. Patented June 23, 1.885.

mmmmnmm mmmnnnm J] HI INVENTORS,

- ORNEY.

gw NE 8: 2w?

N. PETERS. mum (MW bc' UNITED STATES PATENT OFFICE.

HENRY FEYII AND JOHN L. MURPHY, OF PHILADELPHIA, PENNSYLVA- NIA, ASSIGNORS TO L. POWER & 00., OF SAME PLACE.

WOOD-PLANING MACHINE.

CPECIFICATIQN forming part of Letters Patent No. 320,769, dated June 23, 1885.

Application filed June 14, 1883. (No model.)

To aZZ whom it may concern:

Be it known that we, HENRY FEYH and JOHN L. MURPHY, both citizens of the United States,residing in the city and county of Philadelphia, State of Pennsylvania, have invented a new and useful Improvement in Planing- Machines, which improvement is fully set forth in thefollowing specification and accompanying drawings, in which Figure l is a side elevation of the portion of a planing-machine embodying our invention. Fig. 2 is a top view thereof.

Similar letters of reference indicate corresponding parts in the two figures.

Our invention consists of animproved method of gearing the feed-rollers of a planingmachine, whereby, when narrow stuff is to be planed, it is firmly taken hold of by said rollers and slipping prevented.

It also consists in adapting the pressurebars on opposite sides of the cutter-head to be harmoniously adjusted relatively thereto.

Referring to the drawings, A represents a portion of the frame of a planing-machine, which, excepting the features of our invention, is of well-known form and construction.

B E represent the feed-rollers, and O the cutter-head, which are properly mounted on said frame.

D represents gear-wheels, which are connected with the shafts of the feed-rollers, and E represents a gear-wheel, which is mounted on the stud a, secured to the frame A, and located intermediate of the gear-wheels D, so as to mesh therewith, said wheel E being driven by the gearwheels D D, the gearwheel D being on either of the lower rollershafts, D.

F and G represent pressure-bars, which are located on opposite sides of the cutter-head. The bar F is connected or formed with longitudinally-extending arms H, the ends whereof have lugs J, and the bar G has connected or formed with its ends the lugs K, one of the lugs J being adjacent to one of the lugs K, forming a pair, the two pairs being supported and riding on arms L, which project from the bearings of the cutter-head in the longitudinal direction of the machine, and are connected therewith, so as to rise and fall with the same during the vertical adjustment of the cutterhead. The adjacent faces of each pair of lugs are formed with semicircular threads,right and left, respectively, for engagement of a screw,

M, having right and left hand threads,-and

the screw has secured to it a wornrwheel, N, with which meshes a worm, N, the two worms being connected with a shaft, I, the bearings whereof are on the arms L.

In order to permit the longitudinal adjustment of the bars F G, the arms L are slotted in vertical and longitudinal directions, and through the same are passed bolts Q, which screw into the lugs J Kand tighten against the arms L; or, in lieu of said bolts Q,we may employ pins or bolts, which are fixed to the lugs and held by nuts.

The feed-rollers may be vertically adjusted as usual, and in the motions thereof the wheel E remains continually in gear with the wheels D D, so that when the machine is in operation said gear-wheels and the feed-rollers are uniformly rotated. Furthermore, by the provision of the wheel Ethe use of auxiliary gearings, slotted guides, and other complicated and expensive devices is avoided, whereby the machine is simplified and cheapened. Furthermore, as the wheels D are at opposite sides of the wheel E and have their axes approximately below the axis of said wheel E, the action of said wheel E is that of a lifter. serving to lift or raise the wheel D of the front roll,and consequently the connected end of said roll. This depresses the opposite end of said roll, and causes it to pinch or press more firmly against the timber, whereby the latter is reliably fed forward-a feature of advantage in planing narrow stuff, as thelatter is generally introduced between the feedrollcrs at one side thereof.

In order to adjust the pressure-bars F G in a horizontal direction,whereby they may be set nearer to or farther from the cutter-head relatively to the nature or requirements of the timber, the bolts or nuts Q, are loosened and the shaft P is operated, whereby, by means of the worms and worm-wheels,the screws M are rotated and the bars F G simultaneously and harmoniously,uniformly, andpositively moved in opposite directions, so as to approach or re- :2 eeonee cede from each other, and thereby assume positions nearer to or farther from the cutterhead. The bolts or nuts are again tightened, and the bars thus retain their adjusted position, it being seen that in such position they may be vertically adjusted without disturbing the horizontal adjustment. 7

The worms N, worm-wheels N, and shaft 1? may be dispensed with and the adjustment of the bars F G accomplished by the direct operation of each screw M.

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is

1. In a planing-machine, the feed-rollers B B, mounted on the frame, and the gear-Wheels D, connected with said rollers, in combination with the gear-wheel E, mounted on the frame, intermeshing with said gear-wheels, and having its axis approximately above the axes of said rollers, whereby it acts as a lifter for the front roller, B, substantially as described.

2. Pressure-bars arranged on each side of the cutter-head of a planing-machine, and provided with adjusting devices, whereby the pressure-bars are simultaneously moved in opposite directions and adjusted relatively to the cutter-head in the longitudinal direction of the machine, substantially as and for the purpose set forth.

3. Pressure-bars arranged on each side of the cutter-head of a planing-machine, in combination with devices for adjusting vertically said pressure-bars and cutter-head, and with screws, whereby said pressure-bars are simultaneously moved in opposite directions and adjusted relatively to the cutter-head in the longitudinal direction of the machine, as set forth.

4:. Pressure-bars arranged on each side of the cutter-head and provided with threaded lugs in combination with screws engaging therewith, whereby the pressure bars are simultaneously moved in opposite directions and adjusted relatively to the cutter-head in the longitudinal direction of the machine, substantially as and for the purpose set forth.

5. The cutter-head O, in combination with pressure-bars F and G and adjusting devices, and means consisting of a rotary shaft having suitable connections for operating screws bearing on said bars, whereby the said pressurebars are simultaneously moved in opposite directions, the said bars F and G being one in front and the otherin rear of said cutter-head,

substantially as described.

HENRY FEYH. JOHN L. MURPHY.

Witnesses:

JOHN A. WVIEDERSHEIM, A. P. GRANT. 

